I saw this thread https://www.mumsnet.com/talk/am_i_being_unreasonable/4973136-being-told-what-to-order-from-takeaway
Initially,.I thought it unfair that the OP couldn't eat what she wanted. I then read that it was because her hosts were vegetarians.. which then made me think about myself.
DH and I don't drink alcohol (reason is both religious and personal preference). We wouldn't want alcohol being drunk in our home. If we had a guest who wanted to drink would it be unreasonable to say it wouldn't be OK?
For background, this is mine and DH's first he together. Prior to meeting DH, I lived with my parents and so if I caught up with friends it would have been outside at a restaurant etc. and so we haven't yet been in a situation where we might have friends over and someone might want alcohol